Flashcards
C2 CALCULATION
Flashcards do conjunto (9)
- 1how do you find the percentage of yeildactual yield/ predicted yield x100
- 2why might your yield be less than 100%1. it might be a reverse reaction. this is when the product react themselves together to get the original reactant. this means lower yield.
2. there might be a unexpected reaction which may use your reactant.
3. some of the reactant may have got lost when it's seperated from the reaction mixture.
4. the reaction may have not been fully completed. - 3why is product yield important for sustainable development . and how could it be sustainable.it can be replaced and used by future generation and also for the resource to be saved. you could be sustainable by using lower energy to creaate the highest product yeild.
- 4how to calculate massmole x mr
- 5how to calculate molesmass/mr
- 6how do you calculate the mass of element in a compoundar/mr x100
- 7find the relative atomic mass of co2mr of c= 12(mass no.)
mr of o= 16x2-32
ar(relative mass) 32+16 =48 - 8find the percentage of hydrogen in water.r-h-1x2=2
ar-o-16x1=16
mr-16 +2=18
perccentage of hydrogen- 2 divided by 18=0.111
0.111x100=11.1% - 920g of a compound of Silicon with hydrogen contains 17.5g of silicon. Find the empirical formula
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- FlashCards sobre C2 CALCULATION, criado por divya.devanand em 12-10-2015.
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